/Engine/Plugins/2D/Paper2D/Source/Paper2DEditor/Classes/PaperImporterSettings.h
Fills out the tile map with the default settings given the desired material type and lighting mode (which can both be automatic)
void ApplySettingsForTileMapInit ( UPaperTileMap * TileMap, UPaperTileSet * DefaultTileSet, [ESpriteInitMaterialLightingMode](API\Plugins\Paper2DEditor\ESpriteInitMaterialLightingMode) LightingMode, [ESpriteInitMaterialType](API\Plugins\Paper2DEditor\ESpriteInitMaterialType) MaterialTypeMode, bool bCreateEmptyLayer ) const